#A51D71
Closest named color: Red Violet (#9E0168). oklch(49% 0.185 348.8), rgb(165, 29, 113).
Aa
White text reads best on this color (6.96:1).
About this color
#A51D71 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.185 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.029 away. White text reads best on it, at 6.96:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.185) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 3.01:1 |
| White text | 6.96:1 |
Values
| HEX | #A51D71 |
| RGB | rgb(165, 29, 113) |
| HSL | hsl(323, 70%, 38%) |
| OKLCH | oklch(49% 0.185 348.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #A51D71 | 6.96:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #A51D71 | 3.01:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #A51D71 text on white | 6.96:1 | AA | Lc 82.6 | Fine for body text |
| #A51D71 text on black | 3.01:1 | AA large text | Lc -19.3 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E3ED
oklch(93.6% 0.026 347.1)
-
Step 200
200
#F4CCDE
oklch(88.5% 0.051 349.3)
-
Step 300
300
#EDA9CA
oklch(80.9% 0.09 348.7)
-
Step 400
400
#E178AF
oklch(70.7% 0.144 348.8)
-
Step 500
500
#D5519B
oklch(63.1% 0.183 348.9)
-
Step 600
600
#C02D86
oklch(55.5% 0.2 348.6)
-
Step 700
700 (this color)
#A51D71
oklch(49% 0.185 348.8)
-
Step 800
800
#861C5C
oklch(42.6% 0.153 348.8)
-
Step 900
900
#6C1F4C
oklch(37.6% 0.12 348.4)
-
Step 950
950
#40142C
oklch(27.1% 0.075 349.5)
#A51D71 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #364A73 | 0.209 |
| Deuteranopia (no green cones) | #5E626E | 0.182 |
| Tritanopia (no blue cones) | #B11346 | 0.072 |
| Achromatopsia (no color) | #595959 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A51D71
#A51D71
oklch(49% 0.185 348.8)
- #007256
#007256
oklch(49% 0.099 168.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #A51D71, closest first.
No curated palette has a color within ΔE 0.04 of #A51D71.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.029
- Deep Magenta #A0025C ΔE 0.037
- Dark Fuchsia #9D0759 ΔE 0.042
- Violet Red #A50055 ΔE 0.044
- Warm Purple #952E8F ΔE 0.059
- Berry #990F4B ΔE 0.064
- Raspberry #B00149 ΔE 0.065
- Mulberry #920A4E ΔE 0.068
Use #A51D71 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.